Recently here at Fabspeed we have had the privilege of waking up yet another 957 Cayenne GTS with our secondary catbypass pipes. The secondary catbypass pipes are an extremely easy and cheap upgrade that pick up significant sound and power for all Cayenne models across the board. This particular customer came in during the morning and we had his secondary cats removed and our catbypass pipes installed in less than two hours and left extremely satisfied with the whole experience.
If anyone here is local I urge you to come to the shop and I can show you around for a first hand experience of the capabilities and beautiful cars that Fabspeed has and deals with on a daily basis. If you aren't local there is no need to worry as we ship to a global market on a daily basis.
If you have any further questions or are curious about special forum member pricing please shoot me a PM or Email.